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Cheap flights from Montreal Pierre Elliott Trudeau Intl Airport to Castries from C$ 433

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 14/10. Fares are subject to change and may not be available on all flights or dates of travel.
YUL — SLU
25 Aug — 1 Sep1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Pierre Elliott Trudeau Intl to Castries

Enter your travel dates to find the best prices.

Cheapest flights from Pierre Elliott Trudeau Intl to Castries
Explore the most affordable flight options available from Pierre Elliott Trudeau Intl to Castries. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 26 July 2026.

Thu 10/128:15 a.m.
YUL
-
SLU
1 stop9h 45m
Multiple Airlines
Mon 21/1212:35 p.m.
SLU
-
YUL
1 stop9h 00m
Multiple Airlines
Deal found 21/7C$ 838
Thu 10/128:15 a.m.
YUL
-
SLU
1 stop9h 45m
Multiple Airlines
Sun 20/1212:35 p.m.
SLU
-
YUL
2 stops12h 50m
Multiple Airlines
Deal found 21/7C$ 850
Sun 13/97:00 a.m.
YUL
-
SLU
2 stops12h 00m
Multiple Airlines
Mon 14/99:10 a.m.
SLU
-
YUL
2 stops23h 10m
Multiple Airlines
Deal found 25/7C$ 922
Thu 10/128:15 a.m.
YUL
-
SLU
1 stop9h 45m
Multiple Airlines
Tue 22/1212:35 p.m.
SLU
-
YUL
2 stops12h 50m
Multiple Airlines
Deal found 21/7C$ 954
Sat 5/128:00 p.m.
YUL
-
SLU
2 stops22h 00m
Multiple Airlines
Fri 11/129:10 a.m.
SLU
-
YUL
1 stop12h 25m
Multiple Airlines
Deal found 22/7C$ 1,026
Thu 10/128:15 a.m.
YUL
-
SLU
1 stop9h 45m
Multiple Airlines
Sat 19/1212:35 p.m.
SLU
-
YUL
2 stops12h 50m
Multiple Airlines
Deal found 21/7C$ 1,057
Sun 29/116:45 a.m.
YUL
-
SLU
3 stops30h 00m
Multiple Airlines
Mon 14/129:10 a.m.
SLU
-
YUL
2 stops16h 23m
Multiple Airlines
Deal found 21/7C$ 1,243
Thu 10/127:00 a.m.
YUL
-
SLU
1 stop9h 05m
Multiple Airlines
Fri 18/1212:35 p.m.
SLU
-
YUL
2 stops12h 58m
Multiple Airlines
Deal found 21/7C$ 1,313

Find flight deals from Pierre Elliott Trudeau Intl to Castries

Discover tips and strategies to find the most affordable flight options for your journey from Pierre Elliott Trudeau Intl (YUL) to Castries (SLU). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 26 July 2026.

Round-trip from

C$ 838

One-way from

C$ 433
10/12-21/12
  • 10/12-21/12
  • 2 total stops
  • 18h 45m total
  • Montreal to Castries
Search Deals
14/10
  • 14/10
  • 2 total stops
  • 23h 40m total
  • Montreal to Castries
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Pierre Elliott Trudeau Intl to Castries that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 629,999 searches. Data last updated 26 July 2026.
Use the filters below to find and compare flights from Montreal Pierre Elliott Trudeau Intl Airport to Castries that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

MontrealCastries

YUL - SLU

YULSLU

Montreal Pierre Elliott Trudeau Intl

Sun 13/9

7:00 a.m.-7:00 p.m.

2 stops12h 00m

Castries George F. L. Charle

Mon 14/9

9:10 a.m.-8:20 a.m.

2 stops23h 10m

C$ 922

MontrealCastries

YUL - SLU

YULSLU

Montreal Pierre Elliott Trudeau Intl

Sat 5/12

8:00 p.m.-7:00 p.m.

2 stops22h 00m

Castries George F. L. Charle

Fri 11/12

9:10 a.m.-8:35 p.m.

1 stop12h 25m

C$ 1,026

MontrealCastries

YUL - SLU

YULSLU

Montreal Pierre Elliott Trudeau Intl

Fri 11/12

8:15 a.m.-7:00 p.m.

1 stop9h 45m

Castries George F. L. Charle

Sat 19/12

12:35 p.m.-12:25 a.m.

2 stops12h 50m

C$ 1,057

MontrealCastries

YUL - SLU

YULSLU

Montreal Pierre Elliott Trudeau Intl

Mon 21/9

6:45 a.m.-8:10 a.m.

2 stops25h 25m

Castries George F. L. Charle

Sun 27/9

5:00 a.m.-12:25 a.m.

2 stops19h 25m

C$ 1,372

MontrealCastries

YUL - SLU

YULSLU

Montreal Pierre Elliott Trudeau Intl

Wed 9/12

6:45 a.m.-9:20 a.m.

2 stops25h 35m

Castries George F. L. Charle

Wed 23/12

12:35 p.m.-11:20 p.m.

1 stop11h 45m

C$ 1,474

MontrealCastries

YUL - SLU

YULSLU

Montreal Pierre Elliott Trudeau Intl

Fri 16/10

7:20 p.m.-10:10 p.m.

2 stops26h 50m

Castries George F. L. Charle

Thu 22/10

5:50 p.m.-12:25 a.m.

3 stops30h 35m

C$ 1,563
Quickest round-trip

MontrealCastries

YUL - SLU

YULSLU

Montreal Pierre Elliott Trudeau Intl

Mon 7/12

5:25 p.m.-8:10 a.m.

2 stops13h 45m

Castries George F. L. Charle

Wed 23/12

3:45 p.m.-11:20 p.m.

1 stop8h 35m

C$ 1,599

MontrealCastries

YUL - SLU

YULSLU

Montreal Pierre Elliott Trudeau Intl

Sat 12/12

6:20 a.m.-10:10 p.m.

2 stops14h 50m

Castries George F. L. Charle

Wed 23/12

3:45 p.m.-11:20 p.m.

1 stop8h 35m

C$ 1,656

MontrealCastries

YUL - SLU

YULSLU

Montreal Pierre Elliott Trudeau Intl

Mon 10/8

7:00 a.m.-7:00 p.m.

2 stops12h 00m

Castries George F. L. Charle

Wed 19/8

12:35 p.m.-10:22 a.m.

2 stops21h 47m

C$ 1,802
Cheapest one-way

MontrealCastries

YUL - SLU

YULSLU

Montreal Pierre Elliott Trudeau Intl

Wed 14/10

7:20 p.m.-7:00 p.m.

2 stops23h 40m

C$ 433

Flights are sorted by cheapest round-trip flights first.

Deals found on 23/7

Showing 1-10 of 14 resultsSorted by cheapest first
1
2

Best time to book a flight from Pierre Elliott Trudeau Intl to Castries

Have a flexible travel schedule? Discover the best time to fly to Castries from Pierre Elliott Trudeau Intl with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Related info for your journey

Find useful and relevant information for your journey from Pierre Elliott Trudeau Intl to Castries. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Castries from Montreal Pierre Elliott Trudeau Intl?

    For a flight from Montreal Pierre Elliott Trudeau Intl to Castries, you will be flying into George F. L. Charle. Castries George F. L. Charle (SLU) is just 1.2 km from the centre of the city. George F. L. Charle is the only Castries airport and it handles 0 inbound flights from Montreal Pierre Elliott Trudeau Intl per day. 0 airlines have flights to Castries George F. L. Charle from Montreal Pierre Elliott Trudeau Intl on a regular basis.

  • Can I find deals for flights from Pierre Elliott Trudeau Intl to Castries that include hotel bookings?

    Yes. In addition to deals on Pierre Elliott Trudeau Intl to Castries flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Pierre Elliott Trudeau Intl to Castries?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Pierre Elliott Trudeau Intl to Castries.

  • Can I find deals for business class flights from Pierre Elliott Trudeau Intl to Castries?

    Yes. Cheapflights offers flight deals from Pierre Elliott Trudeau Intl to Castries by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Travelling to a place near Castries?

Book flights to Castries if you plan to visit one of these locations
Gros Islet
Marigot Bay

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Alternative routes for Pierre Elliott Trudeau Intl to Castries

See prices for flight routes from nearby airports that may be better suited for you.
Pierre Elliott Trudeau Intl to Castries flights

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How does Cheapflights help users find flights from Pierre Elliott Trudeau Intl to Castries?

Cheapflights makes it easy to find Pierre Elliott Trudeau Intl to Castries flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

Why should you use Cheapflights to find cheap flight tickets from Pierre Elliott Trudeau Intl to Castries?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Castries from Pierre Elliott Trudeau Intl.

Can Cheapflights find flights from Pierre Elliott Trudeau Intl to Castries with no change fees?

Certainly. Search results for flights to Castries from Pierre Elliott Trudeau Intl shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from Pierre Elliott Trudeau Intl to Castries become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Castries from Pierre Elliott Trudeau Intl today and book when prices fit your budget.

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